1, Input of the souce videos.2, Click the "Stitch as Gopro" button.3, Preview the video of few seconds by the Play button. 4, Click the "Synchronization" button.5, Click the "Show a sample" button.6, Click the "OK" button in the end?

is it correct?When I have to use the button of "Update" "Nearest frame" and "Start time"?thank you.